Flight OO4440
SkyWest Airlines flight OO4440
Looking for OO4440 in the air…
Appleton (ATW) to Detroit (DTW)
Historically, this flight arrives 15+ minutes late 25% of the time, and when it is late the delay averages 120 minutes. It was cancelled 0.9% of the time.
- On-time arrivals
- 75.0%
- Less than 15 minutes late
- Cancelled
- 0.9%
- Of scheduled flights
- Average delay when late
- 120 min
- Flights arriving 15+ minutes late
- Flights tracked
- 226
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 61%
- Extreme weather 27%
- Air traffic control & airport 12%
- Late-arriving aircraft 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Detroit (DTW) to Appleton (ATW)
Historically, this flight arrives 15+ minutes late 19% of the time, and when it is late the delay averages 87 minutes. It was cancelled 0.9% of the time.
- On-time arrivals
- 80.7%
- Less than 15 minutes late
- Cancelled
- 0.9%
- Of scheduled flights
- Average delay when late
- 87 min
- Flights arriving 15+ minutes late
- Flights tracked
- 226
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 61%
- Extreme weather 30%
- Air traffic control & airport 9%
- Late-arriving aircraft 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| December 2025 | 66.7% | 24 |
| January 2026 | 59.7% | 62 |
| February 2026 | 82.1% | 56 |
| March 2026 | 57.9% | 62 |
| April 2026 | 75.0% | 60 |
| May 2026 | 100.0% | 62 |
| June 2026 | 86.7% | 60 |
| July 2026 | 85.5% | 62 |
| August 2026 | 100.0% | 4 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data